从氰化贵液(矿浆)中回收金技术进展

Progress on recovering gold from pregnant solution or slurry of cyanidation

目前,氰化浸金仍是从矿石中提取金最主要方法。从氰化浸出贵液(矿浆)中回收金在工业生产中应用的方法主要有锌粉置换法、活性炭吸附法、离子交换树脂吸附法、电沉积法等,而溶剂萃取法、液膜法等尚在试验研究中。文中叙述了从氰化贵液中(矿浆)回收金的各种方法的发展、机理、优缺点及行业应用和研究现状,并对回收方法的选择进行了分析讨论。

Nowadays, cyanidation method is still the most important method for gold leaching from ore in commercial production. The commercial methods to recover gold from pregnant solution or slurry of cyanidation are zinc powder displacement, activated carbon adsorption, ion-exchange and electrodeposition; while the dissolvent leaching and liquid membrane methods are still in research. The paper discusses the progress, application, research and choosing of the mentioned recovery methods.